diff --git a/snappy_pipeline/workflows/hla_typing/__init__.py b/snappy_pipeline/workflows/hla_typing/__init__.py
index c39060f12..a2b8d2b04 100644
--- a/snappy_pipeline/workflows/hla_typing/__init__.py
+++ b/snappy_pipeline/workflows/hla_typing/__init__.py
@@ -300,14 +300,7 @@ def default_config_yaml(cls):
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs, config_model_class=HlaTypingConfigModel)
-        sub_steps = [LinkInStep, LinkOutStepPart]
-        for tool in self.config.tools:
-            if self.config.get(str(tool)):
-                match tool:
-                    case "optitype":
-                        sub_steps.append(OptiTypeStepPart)
-                    case "arcashla":
-                        sub_steps.append(ArcasHlaStepPart)
+        sub_steps = [LinkInStep, LinkOutStepPart, OptiTypeStepPart, ArcasHlaStepPart]
         self.register_sub_step_classes(tuple(sub_steps))
         #: Mapping from library name to library object
         self.ngs_library_name_to_ngs_library = OrderedDict()